Two seperate versions of this near invincible vessel were constructed. The first ends up floating 20 miles off the coast of the Mystic Ruins near Tails' workshop and can be accessed through a watermill raft in the Mystic Ruins and a small vessel in Station Square. The second Egg Carrier was destroyed by Perfect Chaos who fired an aquatic ionization beam which disrupted engine function which caused it to crash. But since the Egg Carrier's formidable cannon was activated and fully charged it caused the second Egg Carrier to explode. The second Egg Carrier was said by Eggman to have been created just in case Chaos rebelled.

Contents

Areas

In Sonic Adventure the Egg Carrier is capable of transforming into two modes, one suited for attack, with its wings spread out, and another with its wings folded. The first form's extended wings made it impossible to get to the bridge without going through the Sky Deck first. The switch is made automatically from the second to the first once Sonic sets afoot in the Egg Carrier with Tails to retrieve Amy. He later switches it back to its original shape after completing Sky Deck, so he can pursue Eggman further, after defeating E-102. It's worth noting that according to each transformation, water capacities and the heights the springs and several Eggman shaped cannons can shoot Sonic (they won't open for other characters) and change.

Area A - Deck

Map of the Egg Carrier, as an Adventure Field in Sonic Adventure. (wings folded)

Map of the Egg Carrier, as an Adventure Field in Sonic Adventure. (wings extended)

The deck of the Egg Carrier with it's wings folded allows movement through without interruption. This is where the Centre Dome is located, where everyone but Sonic and Tails fight their final boss. On the deck aisles there are two ramps that lead back to the other two Adventure Fields, Station Square (2) and Mystic Ruins (3). Also in one of the aisles, there's a Monorail Station (4) that leads to the bridge (G). To the back of the deck, there are a mast with two platforms that serve as some kind of crow's nest, the entrances to the Radar's Room (5), the Captain's Room (D), the Pool room (E) and a pod that leads to the Bridge (G). The bottom landing cannons and the ones around the Centre Dome shoot Sonic to the middle of it, while the ones to the back shoot him to the middle mast platform. The black boxes near some of the cannons on the Centre Dome can be destroyed by Knuckles' punch. As curiosity the blown up glass Central Dome is completely reconstructed and running once the fallen Egg Carrier is visisted for the first time.

Area B - Forward Deck

The deck of the Egg Carrier with it's wings spread is divided into two, the forward deck and rear deck. The only way to access the rear deck from the front deck is by means of the Sky Deck, which leads to the Bridge (G) or by using the Monorail, that also leads to the bridge (not running when Sonic first arrives at the Egg Carrier). The forward deck is composed off the Centre Dome (1), boat landings leading to Station Square (2) and Mystic Ruins (3), Monorail station (4) mentioned above and the Sky Deck entrance (5) for Sonic and Tails. The bottom and to the back landing cannons here shoot Sonic to the Sky Deck entrance and tose to the front send him to the aisle landing strips, while the ones around the Centre Dome send him to their opposite (destroying black boxes if they're there) large rotating platform at the top of the ship's mast.

Area C - Rear Deck

The deck of the Egg Carrier with it's wings spread is divided into two, the forward deck and rear deck. The only way to access the forward deck from the rear deck is by means of the Bridge and then using the Monorail. The rear deck is composed off the Radar Room (1), the Pool room entrance (E), Eggman's Personal Quarters entrances (F) and the Free Floating Platform (2) that leads to the Bridge (G). The two Eggman cannons launch Sonic to the top of the quarter's roof. For some bizarre reason, there are several 10-ring boxes, two to the utmost back of the vessel and one below the highest platform. Only Tails reaches the top of the higher platform.

Area D - Captain's Room

This small room is where the transformation switch is, between the rails of the Captain's seat. Standing on the seat makes it go back in forth on these rails. When Sonic arrives from Eggman's quaters (F), the seat is always over the switch, while is pushed to the front when the wings are spread.

Area E - Pool

The pool is one of Eggman's extravagances. It's accessed through the deck (A), in either transformation of the Egg Carrier (rear deck for wings spread). The pool is full of water before Eggman spreads the Egg Carrier's wings when Sonic first arrives. Once it's in attack mode, the water will be drained and the door accessing a very small room (1) that leads to Sky Deck for Knuckles will be open. When he finishes said level, he'll return here. There are six 10-ring boxes on higher platforms and in the Sky Deck's entrance room.

Area F - Eggman's Personal Quarters

These quirky living arrangements have two entrances from the rear deck of the Egg Carrier (C), when the wings are spread out and it's impossible to reach with them folded. Going through the bottom landing door at the right of the structure, it leads to an hexagonal room with two locked doors and a ring switch button (they do not spawn like in Station Square's equivalents. Using Lightspeed Dash will lead to the Captain's Room through the ceiling, albeit there's no visible hole or moving latches there. Going through the door in the balcony on the first story of the structure, it leads to Eggman's Study. There is a switch here, that drops Eggman's wallbed down. A door leads to the hexagonal room described above and this time the both doors are left unlocked. The second door leads to Eggman's Playroom which contains a lot of funny gadgets, but only the Eggpods are somewhat interactable.

Area G - Bridge

The bridge is accessed through the deck by a pod (C) or through Sky Deck for Sonic and Tails. Locations of interest include the a setting of buttons that open the entrances to the Torture Chamber (2), where the Hedgehog Hammer minigame is and that leads to the Prison Room (1), and the Hot Shelter entrance (9), along with the Chao Garden Portal (4), spelling Eggman's buttons (5) will open the door, the Free Floating Platform (6) that leads to the deck, the Monorail Station (7), the Weapon's Storage (8), where Gamma's Jet Booster is and the the Water Reserve (3), where Gamma's Laser Blaster upgrade is. The latter is full of water, therefore not available while the wings are spread, and only accessible after the Egg Carrier crashes and folds its wings by default and since they alternate (not the case after it crashes), it may have some connection with the Pool's draining. As an additional curiosity, the robot maids that clean the Bridge are still doing it after the Egg Carrier crashes.